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Re: [PATCH 1/4] s390x/pci: use a reserved ID for the default PCI group
From: |
Eric Farman |
Subject: |
Re: [PATCH 1/4] s390x/pci: use a reserved ID for the default PCI group |
Date: |
Thu, 02 Dec 2021 16:27:08 -0500 |
On Thu, 2021-12-02 at 11:41 -0500, Matthew Rosato wrote:
> The current default PCI group being used can technically collide with
> a
> real group ID passed from a hostdev. Let's instead use a group ID
> that comes
> from a special pool that is architected to be reserved for simulated
> devices.
>
> Fixes: 28dc86a072 ("s390x/pci: use a PCI Group structure")
> Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Regardless of the question regarding virtio migration, this is good.
Reviewed-by: Eric Farman <farman@linux.ibm.com>
> ---
> include/hw/s390x/s390-pci-bus.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/hw/s390x/s390-pci-bus.h b/include/hw/s390x/s390-
> pci-bus.h
> index aa891c178d..2727e7bdef 100644
> --- a/include/hw/s390x/s390-pci-bus.h
> +++ b/include/hw/s390x/s390-pci-bus.h
> @@ -313,7 +313,7 @@ typedef struct ZpciFmb {
> } ZpciFmb;
> QEMU_BUILD_BUG_MSG(offsetof(ZpciFmb, fmt0) != 48, "padding in
> ZpciFmb");
>
> -#define ZPCI_DEFAULT_FN_GRP 0x20
> +#define ZPCI_DEFAULT_FN_GRP 0xFF
> typedef struct S390PCIGroup {
> ClpRspQueryPciGrp zpci_group;
> int id;
- Re: [PATCH 2/4] s390x/pci: don't use hard-coded dma range in reg_ioat, (continued)
- [PATCH 1/4] s390x/pci: use a reserved ID for the default PCI group, Matthew Rosato, 2021/12/02
- Re: [PATCH 1/4] s390x/pci: use a reserved ID for the default PCI group, David Hildenbrand, 2021/12/02
- Re: [PATCH 1/4] s390x/pci: use a reserved ID for the default PCI group, Matthew Rosato, 2021/12/02
- Re: [PATCH 1/4] s390x/pci: use a reserved ID for the default PCI group, David Hildenbrand, 2021/12/02
- Re: [PATCH 1/4] s390x/pci: use a reserved ID for the default PCI group, Halil Pasic, 2021/12/02
- Re: [PATCH 1/4] s390x/pci: use a reserved ID for the default PCI group, Matthew Rosato, 2021/12/02
- Re: [PATCH 1/4] s390x/pci: use a reserved ID for the default PCI group, Pierre Morel, 2021/12/03
- Re: [PATCH 1/4] s390x/pci: use a reserved ID for the default PCI group, David Hildenbrand, 2021/12/03
Re: [PATCH 1/4] s390x/pci: use a reserved ID for the default PCI group,
Eric Farman <=
Re: [PATCH 1/4] s390x/pci: use a reserved ID for the default PCI group, Pierre Morel, 2021/12/03